This prospect is in the Tracy Arm-Fords Terror Wilder Area which is closed to prospecting and mining.
Location: This prospect is on the west shore of the small bay about 2 miles south of the terminus of the North Dawes Glacier. The prospect is about 0.7 mile south-southeast of the head of the bay and about 0.4 mile west of the center of section 13, T. 50 S., R. 77 E. The location is accurate.
Geology: In 1955, a claim was staked for uranium associated with several small albite pegmatite lenses (Williams, 1955 [PE 115-7]; Eakins, 1975). Two samples contained 35 to 45 parts per million (ppm) uranium. Kimble and others (1984) identified four radioactive pegmatite zones; the largest is about 20 feet by 120 feet in area, the smallest about 35 by 45 feet in area. A geiger-counter traverse over the area indicated background values of uranium to about twice background. Several chip samples 5 to 13 feet long contained 0.2 to 16.1 ppm uranium. The rocks in the vicinity are foliated biotite-hornblende tonalite of Tertiary or Cretaceous age (Brew and Grybeck, 1984).
Workings: Probably only surface sampling.
Age: Pegmatite is probably Cretaceous or Tertiary in age.
Alteration: Uranium mineralization related to albite pegmatite.

Commodities (Major) - U
Development Status: None
Deposit Model: Uranium in pegmatite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Uranium

Mineral List

ⓘ Uraninite

1 valid mineral.

Detailed Mineral List:

ⓘ Uraninite

Formula: UO₂

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Uraninite	4.DL.05	UO₂

List of minerals for each chemical element

O	Oxygen
O	ⓘ Uraninite	UO₂
U	Uranium
U	ⓘ Uraninite	UO₂

Other Databases

Link to USGS - Alaska:	SD056

Other Regions, Features and Areas containing this locality

North AmericaContinent

Coast MountainsMountain Range

North America PlateTectonic Plate

Coast plutonic complexVolcanic Arc
Taku DomainDomain

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Brew, D.A., and Grybeck, Donald, 1984, Geology of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska, in U.S. Geological Survey and U.S. Bureau of Mines, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, p. 19-52. Brew, D.A., Grybeck, Donald, Johnson, B.R., Jachens, R.C., Nutt, C.J., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1977, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity: U.S. Geological Survey Open-File Report 77-649, 282 p. Eakins, G.R., 1975, Uranium investigations in southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Geologic Report 44, 62 p. Kimble, A.L., Still, J.C., and Rataj, J.L., 1984, Mineral deposits and occurrences in the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska, in U.S. Geological Survey and U.S. Bureau of Mines, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, p. 106-210. U.S. Geological Survey and U.S. Bureau of Mines, 1984, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, 308 p. Williams, J.A., 1955, Preliminary examination report, BBH property, Sumdum quadrangle, radioactives: Alaska Territorial Department of Mines, Prospect Evaluation 115-7, 7 p.

Quick NavTop Commodities Mineral List Other Databases Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 5, 2026 14:41:15 Page updated: June 7, 2025 20:58:26

Go to top of page